List of top Physics Questions on Ray optics and optical instruments asked in AP EAMCET

A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is \( C \). The maximum possible deviation of the ray will be:

A lens with refractive index \( \frac{3}{2} \) has a power of +5 diopters in air. If it is completely immersed in water, its power is (in diopters).
The refractive index of water is \( \frac{4}{3} \) 
 

Two light sources of intensities \( I \) and \( 9I \) produce interference fringes on a screen. The phase difference between the beams is \( \frac{\pi}{2} \) at point A and at point B on the screen. The difference between resultant intensities at point A and B is
If a ray of light takes \(t_1\) and \(t_2\) times in two media of absolute refractive indices \(\mu_1\) and \(\mu_2\) respectively to travel same distance, then the relation between the times and refractive indices is:
Two vibrating strings of same length, same cross-sectional area and stretched to same tension are made of material with densities \(\rho\) and \(2\rho\). Each string is fixed at both ends. If \(V_1\) and \(V_2\) are speeds of transverse waves in the strings with densities \(\rho\) and \(2\rho\) respectively, then \(\frac{V_1}{V_2}\) is:

The blue colour of the sky is due to ?

A ray is incident from a medium of refractive index \(2\) into a medium of refractive index \(1\). The critical angle is